1 Section Three - AT Command Set ............... 6 Section Four - S Registers ........................ 13 Section Five - Result Codes ...................... 14 Section Six - Troubleshooting.................... 15 Section Seven - Support and Service......... 17 Appendix A - Specifications ..................... 17 Appendix B - Notices ................................ 17 Part #MAN152 Rev. 1.0 V.90-CL The information contained in this manual has been validated at the time of this manual's production

H manufactured by: ® Manufacturer: Maxtec, Inc European Representative Airox S.A. Parcd’activities Pau-Pyrenees L’echangeur BP833 64008 PAU Cedex France PREFACE This manual describes the function, operation and maintenance of the Maxtec Model OM-25ME and OM-25ME-L oxygen monitors. Notes are included where differences may occur between the two monitors. As members of Maxtec's MAXO2< line of oxygen analyzers and monitors, the OM-25ME utilizes the Maxtec MAX-250E oxygen sensor and is engineered for